The primary advantage of a stratified random sample is that it ____.
A) ensures that group sizes will be adequate for statistical analysis
B) provides a sample that is guaranteed to be representative of the population
C) ensures that no single group is over-represented in the sample
D) does not require pre-existing knowledge about the population

Question

Quizplus · Accepted Answer

Stratified random sampling ensures that each subgroup (stratum) of the population is adequately represented, which helps in obtaining sufficient sample sizes for statistical analysis of each group.

The Primary Advantage of a Stratified Random Sample Is That